Airtac SC50 Standard Cylinder SC50X300STC
The AirTAC SC50 Standard Cylinder SC50X300STC is a genuine double-acting standard air cylinder with a Ø50mm bore and 300mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke300 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SC50 Standard Cylinder SC50X300STC
The SC50X300STC is a double-acting pneumatic cylinder with a 50 mm bore and 300 mm stroke, pre-configured with a built-in magnet and centre trunnion mount. Operating at 0.5 MPa, it provides a push force of 982 N and a pull force of 825 N, driven by a 20 mm diameter piston rod with an M16x1.5 male thread.
This model features an adjustable air cushion (21 mm length) at both ends to decelerate the piston smoothly. The total body length A is 150 mm, giving an approximate extended length of 450 mm. The TC suffix indicates it ships with the TCM1 trunnion bracket (F-SC50TC), allowing the cylinder to pivot during operation, while the S suffix provides a magnetic piston for easy sensor mounting.
Airtac SC50 Standard Cylinder SC50X300STC Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X300STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC50 Standard Cylinder SC50X300STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×300 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SC50 Standard Cylinder SC50X300STC Is Used
Conveyor Sorting Gates
The 300 mm stroke and pivoting trunnion mount allow this cylinder to actuate diverter gates on packaging lines, handling a 982 N push force to redirect products reliably.
Clamping & Welding Fixtures
With a built-in magnet for sensor feedback and a 20 mm rod, it provides consistent clamping force for automated welding or machining fixtures, confirming position before the cycle starts.
Agricultural Implement Control
The TPU seals and robust tie-rod design suit dusty environments. The trunnion mount allows the cylinder body to swing, ideal for controlling chutes or levers on farm machinery.
Is the Airtac SC50 Standard Cylinder SC50X300STC the Right Cylinder?
For applications needing more force, stepping up to a 63 mm bore SC63 series provides 1559 N of push force at the same 0.5 MPa pressure. If a lower force is sufficient, the 40 mm bore SC40 series delivers 628 N. At a 300 mm stroke, ensure side loads are minimal; if the rod is subject to lateral forces, an external guide or a guided cylinder is strongly recommended to prevent rod bending and premature seal wear.
This cylinder is a direct replacement only for an existing AirTAC SC50 tie-rod cylinder with identical bore, stroke, PT port thread, TC centre trunnion mount, and a magnetic piston. It is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SC50 Standard Cylinder SC50X300STC FAQ
At the standard operating pressure of 0.5 MPa, the push force is 982 N and the pull force is 825 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 1767 N.
No. The SC50X300STC is a double-acting cylinder and will not hold its position if air pressure is exhausted or lost. The piston can drift or drop. For load-holding applications, you must add an external rod lock, a pilot-operated check valve, or use a mechanical brake.
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